Mercurial > hg > orthanc-databases

annotate Framework/Plugins/StorageBackend.cpp @ 195:53bd9022c58b

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Support of "OrthancPluginRegisterStorageArea2()" from Orthanc SDK 1.9.0
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 08 Jan 2021 18:54:20 +0100
parents a51ce147dbe0
children d9ef3f16e6a2
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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3236894320d6 upgrade to year 2021
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium
1
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "StorageBackend.h"
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23
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24 #if HAS_ORTHANC_EXCEPTION != 1
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25 # error HAS_ORTHANC_EXCEPTION must be set to 1
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26 #endif
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27
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28 #include "../../Framework/Common/BinaryStringValue.h"
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29 #include "../../Framework/Common/FileValue.h"
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30
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31 #include <Compatibility.h> // For std::unique_ptr<>
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32 #include <OrthancException.h>
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33
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34 #include <limits>
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35
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36
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37 #define ORTHANC_PLUGINS_DATABASE_CATCH \
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38 catch (::Orthanc::OrthancException& e) \
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39 { \
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40 return static_cast<OrthancPluginErrorCode>(e.GetErrorCode()); \
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41 } \
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42 catch (::std::runtime_error& e) \
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43 { \
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44 std::string s = "Exception in storage area back-end: " + std::string(e.what()); \
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45 OrthancPluginLogError(context_, s.c_str()); \
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46 return OrthancPluginErrorCode_DatabasePlugin; \
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47 } \
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48 catch (...) \
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49 { \
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50 OrthancPluginLogError(context_, "Native exception"); \
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51 return OrthancPluginErrorCode_DatabasePlugin; \
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52 }
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53
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54
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55 namespace OrthancDatabases
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56 {
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57 StorageBackend::StorageBackend(IDatabaseFactory* factory) :
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58 manager_(factory)
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59 {
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60 }
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61
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62
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63 void StorageBackend::Create(DatabaseManager::Transaction& transaction,
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64 const std::string& uuid,
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65 const void* content,
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66 size_t size,
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67 OrthancPluginContentType type)
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68 {
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69 DatabaseManager::CachedStatement statement(
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70 STATEMENT_FROM_HERE, GetManager(),
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71 "INSERT INTO StorageArea VALUES (${uuid}, ${content}, ${type})");
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72
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73 statement.SetParameterType("uuid", ValueType_Utf8String);
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74 statement.SetParameterType("content", ValueType_File);
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75 statement.SetParameterType("type", ValueType_Integer64);
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76
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77 Dictionary args;
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78 args.SetUtf8Value("uuid", uuid);
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79 args.SetFileValue("content", content, size);
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80 args.SetIntegerValue("type", type);
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81
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82 statement.Execute(args);
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83 }
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84
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85
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86 void StorageBackend::Read(StorageAreaBuffer& target,
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87 DatabaseManager::Transaction& transaction,
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88 const std::string& uuid,
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89 OrthancPluginContentType type)
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90 {
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91 DatabaseManager::CachedStatement statement(
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92 STATEMENT_FROM_HERE, GetManager(),
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93 "SELECT content FROM StorageArea WHERE uuid=${uuid} AND type=${type}");
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94
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95 statement.SetParameterType("uuid", ValueType_Utf8String);
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96 statement.SetParameterType("type", ValueType_Integer64);
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97
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98 Dictionary args;
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99 args.SetUtf8Value("uuid", uuid);
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100 args.SetIntegerValue("type", type);
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101
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102 statement.Execute(args);
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103
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104 if (statement.IsDone())
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105 {
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106 throw Orthanc::OrthancException(Orthanc::ErrorCode_UnknownResource);
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107 }
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108 else if (statement.GetResultFieldsCount() != 1)
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109 {
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110 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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111 }
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112 else
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113 {
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114 const IValue& value = statement.GetResultField(0);
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115
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116 switch (value.GetType())
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117 {
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118 case ValueType_File:
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119 target.Assign(dynamic_cast<const FileValue&>(value).GetContent());
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120 break;
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121
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122 case ValueType_BinaryString:
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123 target.Assign(dynamic_cast<const BinaryStringValue&>(value).GetContent());
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124 break;
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125
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126 default:
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127 throw Orthanc::OrthancException(Orthanc::ErrorCode_Database);
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128 }
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129 }
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130 }
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131
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132
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133 void StorageBackend::Remove(DatabaseManager::Transaction& transaction,
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134 const std::string& uuid,
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135 OrthancPluginContentType type)
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136 {
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137 DatabaseManager::CachedStatement statement(
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138 STATEMENT_FROM_HERE, GetManager(),
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139 "DELETE FROM StorageArea WHERE uuid=${uuid} AND type=${type}");
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140
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141 statement.SetParameterType("uuid", ValueType_Utf8String);
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142 statement.SetParameterType("type", ValueType_Integer64);
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143
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144 Dictionary args;
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145 args.SetUtf8Value("uuid", uuid);
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146 args.SetIntegerValue("type", type);
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147
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148 statement.Execute(args);
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149 }
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150
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151
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152
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153 static OrthancPluginContext* context_ = NULL;
157
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154 static std::unique_ptr<StorageBackend> backend_;
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155
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156
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157 static OrthancPluginErrorCode StorageCreate(const char* uuid,
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158 const void* content,
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159 int64_t size,
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160 OrthancPluginContentType type)
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161 {
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162 try
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163 {
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164 DatabaseManager::Transaction transaction(backend_->GetManager());
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165 backend_->Create(transaction, uuid, content, static_cast<size_t>(size), type);
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166 transaction.Commit();
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167 return OrthancPluginErrorCode_Success;
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168 }
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169 ORTHANC_PLUGINS_DATABASE_CATCH;
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170 }
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171
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172
195
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173 #if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 9, 0)
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174 static OrthancPluginErrorCode StorageReadWhole(OrthancPluginMemoryBuffer64 *target,
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175 const char* uuid,
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176 OrthancPluginContentType type)
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177 {
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178 try
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179 {
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180 StorageAreaBuffer buffer(context_);
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181
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182 {
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183 DatabaseManager::Transaction transaction(backend_->GetManager());
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184 backend_->Read(buffer, transaction, uuid, type);
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185 transaction.Commit();
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186 }
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187
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188 buffer.Move(target);
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189
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190 return OrthancPluginErrorCode_Success;
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191 }
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192 ORTHANC_PLUGINS_DATABASE_CATCH;
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193 }
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194 #else
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195 static OrthancPluginErrorCode StorageRead(void** content,
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196 int64_t* size,
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197 const char* uuid,
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198 OrthancPluginContentType type)
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199 {
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200 try
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201 {
195
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202 StorageAreaBuffer buffer(context_);
194
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203
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204 {
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205 DatabaseManager::Transaction transaction(backend_->GetManager());
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206 backend_->Read(buffer, transaction, uuid, type);
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207 transaction.Commit();
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208 }
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209
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210 *size = buffer.GetSize();
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211 *content = buffer.ReleaseData();
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212
1
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213 return OrthancPluginErrorCode_Success;
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214 }
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215 ORTHANC_PLUGINS_DATABASE_CATCH;
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216 }
195
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217 #endif
1
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218
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219
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220 static OrthancPluginErrorCode StorageRemove(const char* uuid,
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221 OrthancPluginContentType type)
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222 {
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223 try
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224 {
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225 DatabaseManager::Transaction transaction(backend_->GetManager());
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226 backend_->Remove(transaction, uuid, type);
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227 transaction.Commit();
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228 return OrthancPluginErrorCode_Success;
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229 }
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230 ORTHANC_PLUGINS_DATABASE_CATCH;
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231 }
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232
d17b2631bb67 starting StorageBackend
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233
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234 void StorageBackend::Register(OrthancPluginContext* context,
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235 StorageBackend* backend)
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236 {
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237 if (context == NULL ||
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238 backend == NULL)
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239 {
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240 throw Orthanc::OrthancException(Orthanc::ErrorCode_NullPointer);
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241 }
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242
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243 if (context_ != NULL ||
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244 backend_.get() != NULL)
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245 {
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246 // This function can only be invoked once in the plugin
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247 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
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248 }
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249 else
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250 {
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251 context_ = context;
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252 backend_.reset(backend);
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253 backend_->GetManager().Open();
1
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254
195
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diff changeset
255 #if ORTHANC_PLUGINS_VERSION_IS_ABOVE(1, 9, 0)
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diff changeset
256 OrthancPluginRegisterStorageArea2(context_, StorageCreate, StorageReadWhole,
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diff changeset
257 NULL /* TODO - StorageReadRange */, StorageRemove);
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258 #else
1
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259 OrthancPluginRegisterStorageArea(context_, StorageCreate, StorageRead, StorageRemove);
195
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260 #endif
1
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261 }
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262 }
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263
d17b2631bb67 starting StorageBackend
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264
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265 void StorageBackend::Finalize()
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266 {
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267 backend_.reset(NULL);
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268 context_ = NULL;
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269 }
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270 }